Sorry to hear about the Y-Pipe. You will still have fun, I am sure of that. As for the time, it matters how long of stops we make when we change highways, and how long we spend at Bishops Castle, because this thing is awesome !!

If you have never been there . . . Some crazy guy started building this castle for the last 40 years, none stop, by hand, with no education, by himself, ZERO help ! Anyways, it is one of the coolest things you will see in Colorado.
I myself think we can easily get back to Pueblo by 3pm if we leave at 10am !

That's 5 hour's, and lunch should only be 1 hour. After lunch, a fast drive back down the canyon to Pueblo. Bring your camera's ! Less then 48 Hours !

-B.